Datasheet Please read the Important Notice and Warnings at the end of this document 1.0 www.infineon.com/gdLowSide Page 1 of 20 2020-04-01 1ED44173N01B Single-channel low-side MOSFET gate driver IC with fast OCP Features Potential applications Over-current detection (OCP) with negative voltage input Digitally controlled PFC -0.246 V over-current threshold with accurate ±5% tolerance Single pin for fault output and enable Programmable fault clear time Under voltage lockout for MOSFETs CMOS Schmitt-triggered inputs 3.3 V, 5 V and 15 V input logic compatible 25 V VCC voltage supply support (max) Output in phase with input -10 VDC negative Input capability of OCP pin 3 kV ESD HBM RoHS compliant Home appliances Air conditioner Industrial applications General purpose low-side gate driver for single-ended topologies Description The 1ED44173N01B is a low-voltage, power MOSFET non-inverting gate driver. Proprietary latch immune CMOS technologies enable ruggedized monolithic construction. The logic input is compatible with standard CMOS or LSTTL output. The output driver features a current buffer stage. The 1ED44173N01B has OCP pin for over current protection sense and a FAULT status output (Once it is active, EN/FLT pin is internally pulled down). The EN/FLT needs to be outside pulled up to provide normal operation, pulling EN/FLT low disable the driver. Internal circuitry on VCC pin provides an under voltage lockout protection that holds output low until VCC supply voltage is within operating range. Gnd Vdd I/O1 μC I/O2 Vout RFLTC Rcs 4 6 1 OCP COM Vcc EN/FLT 5 3 IN 2 OUT 1ED44173N01B Vin+ Vin- CFLTC Vcc Figure 1 Typical application Ordering information Product validation Qualified for industrial applications according to the relevant tests of JEDEC JESD47/22 and J-STD-020. Product type Package Standard pack Orderable part number Form Quantity 1ED44173N01B PG-SOT23-6-3 Tape and Reel 3000 1ED44173N01BXTSA1 (Refer to lead assignments for correct pin configuration). This diagram show electrical connections only. Please refer to our application notes and design tips for proper circuit board layout.
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Single-channel low-side MOSFET gate driver IC with fast OCP€¦ · General purpose low-side gate driver for single-single-ended topologies Description The 1ED44173N01B is a low-voltage,
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Datasheet Please read the Important Notice and Warnings at the end of this document 1.0
www.infineon.com/gdLowSide Page 1 of 20 2020-04-01
1ED44173N01B Single-channel low-side MOSFET gate driver IC with fast OCP
Features Potential applications
Over-current detection (OCP) with negative voltage input Digitally controlled PFC
-0.246 V over-current threshold with accurate ±5% tolerance
Single pin for fault output and enable
Programmable fault clear time
Under voltage lockout for MOSFETs
CMOS Schmitt-triggered inputs
3.3 V, 5 V and 15 V input logic compatible
25 V VCC voltage supply support (max)
Output in phase with input
-10 VDC negative Input capability of OCP pin
3 kV ESD HBM
RoHS compliant
Home appliances
Air conditioner
Industrial applications
General purpose low-side gate driver for single-
single-ended topologies
Description
The 1ED44173N01B is a low-voltage, power MOSFET non-inverting gate driver. Proprietary latch immune CMOS technologies
enable ruggedized monolithic construction. The logic input is compatible with standard CMOS or LSTTL output. The output
driver features a current buffer stage. The 1ED44173N01B has OCP pin for over current protection sense and a FAULT status
output (Once it is active, EN/FLT pin is internally pulled down). The EN/FLT needs to be outside pulled up to provide normal
operation, pulling EN/FLT low disable the driver. Internal circuitry on VCC pin provides an under voltage lockout protection
that holds output low until VCC supply voltage is within operating range.
Gnd
Vdd
I/O1
µCI/O2
Vout
RFLTC
Rcs
4
6 1OCP
COM
Vcc
EN/FLT5
3
IN
2
OUT
1ED44173N01B
Vin+
Vin-
CFLTC
Vcc
Figure 1 Typical application
Ordering information
Product validation Qualified for industrial applications according to the relevant tests of JEDEC JESD47/22 and J-STD-020.
Product type Package Standard pack Orderable part number
Form Quantity
1ED44173N01B PG-SOT23-6-3 Tape and Reel 3000 1ED44173N01BXTSA1
1ED44173N01B Single-channel low-side gate driver IC with over-current protection
3 Qualification information
Qualification level
Industrial 1)
Comments: This family of ICs has passed JEDEC’s Industrial
qualification. Consumer qualification level is granted by
extension of the higher Industrial level.
Moisture sensitivity level MSL1 2) 260°C
(per JEDEC standard J-STD-020)
ESD Charged device model
1.5 kV
(per ANSI/ESDA/JEDEC standard JS-002)
Human body model 3 kV
(per ANSI/ESDA/JEDEC standard JS-001)
IC latch-up test Class II, Level A
(per JESD78)
RoHS compliant Yes
1) Higher qualification ratings may be available should the user have such requirements. Please contact your Infineon
sales representative for further information. 2) Higher MSL ratings may be available for the specific package types listed here. Please contact your Infineon sales
1ED44173N01B Single-channel low-side gate driver IC with over-current protection
5 Application information and additional details Information regarding the following topics is included as subsections within this section of the datasheet.
• MOSFET gate driver
• Switching and timing relationships
• Input logic compatibility
• Undervoltage lockout protection
• Over current protection (OCP)
• Fault reporting and programmable fault clear timer
• Enable input
See the 1ED44173N01B Application Note AN2020-09 Low-side MOSFET driver with fast over current protection and
fault/enable (negative current sense) for interface circuit examples and recommended layout guidelines.
5.1 MOSFET gate driver
The 1ED44173N01B is designed to drive MOSFET power devices. Figure 4Error! Reference source not found. and Figure 5 i
llustrate several parameters associated with the gate driver functionality of the driver. The output current of the driver, used to
drive the gate of the power switch, is defined as IO. The voltage that drives the gate of the external power switch is defined as
VOUT.
Figure 4 Gate output sourcing current Figure 5 Gate output sinking current
5.2 Switching and timing relationships
The relationships between the input and output signals of the 1ED44173N01B are illustrated below Figure 6. From the figure,
we can see the definitions of several timing parameters (i.e. ton, toff, tr, and tf) associated with this device.
IMPORTANT NOTICE The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”) . With respect to any examples, hints or any typical values stated herein and/or any information regarding the application of the product, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. In addition, any information given in this document is subject to customer’s compliance with its obligations stated in this document and any applicable legal requirements, norms and standards concerning customer’s products and any use of the product of Infineon Technologies in customer’s applications. The data contained in this document is exclusively intended for technically trained staff. It is the responsibility of customer’s technical departments to evaluate the suitability of the product for the intended application and the completeness of the product information given in this document with respect to such application.
For further information on the product, technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies office (www.infineon.com).
WARNINGS Due to technical requirements products may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies office. Except as otherwise explicitly approved by Infineon Technologies in a written document signed by authorized representatives of Infineon Technologies, Infineon Technologies’ products may not be used in any applications where a failure of the product or any consequences of the use thereof can reasonably be expected to result in personal injury.
Edition 2020-04-01
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